Version 4.5 of MeV uses a library called JRI to connect to the R statistical environment, packaged with MeV. A difficulty of the JRI library with 64-bit Java means that some parts of MeV will not function when run on a 64-bit Windows computer running 64-bit Java. This difficulty can be overcome simply by installing the 32-bit version of Java and ensuring that MeV uses it. Instructions for Windows users are below.

Instructions for using 32-Bit JREs on 64-Bit Windows

Step 1:

Install the 32 bit Jre6 from one of the locations below: Please accept the install location as :

"C:\Program Files (x86)\Java"

From Sun:

MeV local copy:

Step 2:

Browse over to the MeV_4_5_0 folder.

Open the TMEV.bat file in text editor.

Add the following lines *after the line that reads :CMD

REM Set JAVA_HOME **Only 32 Bit JVM is not default

REM Assumes you have already installed 32 Bit JRE

REM following instructions at MeV SourceForge forum

REM This not required on a 32 Bit Windows machine and

REM only required if your 64 Bit Windows machine does REM have a default 32 bit JVM

REM NOTE: This does not alter any of your system settings REM All changes are local to this file/environemnt

set JAVA_HOME="C:\Program Files (x86)\Java\jre6"

set PATH=%JAVA_HOME%;%JAVA_HOME%\bin;%PATH%

Save TMEV.bat

Step 2: (Alternative)

If you have followed Step 1 correctly you can just copy a new launch file called TMEV_64.bat from here.

Put it under the folder MeV_4_5_0.

Use TMEV_64.bat to launch MeV